Selection of proper number and location of boreholes are major tasks in design of exploration network. Boreholes normally drilled FOR insitue testing and sampling. A challenging issue in sampling is determination of number and location of samples. The logic of optimum sampling is sequential. This work presents a comparison between single and multiple stages sampling in Semilan dam site. First, the single-stage sampling was tested; using geotechnical data (Lugeon and RQD) of 23 boreholes and indicator FUNCTION. Based on indicator FUNCTIONs, Lugeon parameter divided to four and RQD to three indexes. The other application of indicator FUNCTIONs, is converting qualitative to quantitative data in order to define indicators of various structures and lithology of the studied dam site. Then, indicator variograms of each parameter, in various directions, were calculated and their variogram parameters were extracted. Based on the average kriging error, Lugeon, RQD and lithology index were also divided into four indexes. Consequently, the FUNCTION FOR LOCATIONS of ADDITIONAL DRILLINGs, based on their relation with risk and uncertainty is defined. FUNCTION FOR location of ADDITIONAL DRILLINGs is found to be equal to Lugeon multiply to estimation error multiply to index of dam structures; divided by RQD multiply by lithology index.Next, two stages sampling was studied starting with 12 boreholes, according to sample density.All the process was repeated once again and according to FUNCTION of ADDITIONAL DRILLING LOCATIONS, 8 boreholes were selected FOR the second level or phase of DRILLING. Based on kriging and neural network estimator, and using normalized data, desired parameters were estimated.In the present study, kriging variance and estimation error in two stages sampling decreased more, compare to one stage sampling, although the numbers of boreholes decreased from 23 to 20. Reduction of estimation error is related to the layout of the first stage boreholes between the second stage ones.

Strength measurement of rock requires testing that must be carried out on test specimens with particular sizes in order to fulfill testing standards or suggested methods. Often, the coring process breaks up the weaker core pieces, and they are too small to be used in either index tests or conventional strength tests such as point load index (Is) and Brazilian tensile strength (BTS). One of the index tests to indirectly determine the rock strength is the block punch index (BPI) test, which requires flat disc specimens without special treatment. This study aimed to evaluate the applicability of the BPI test FOR predicting the uniaxial compressive strength (UCS), BTS and IS of the sandstones by empirical equations. Also, we have compared the perFORmance of the BPI and IS FOR predicting the UCS and BTS. It was experimentally shown that BPI is a reliable method FOR predicting the UCS, BTS and Is of the sandstones under study. Moreover, the results indicate that BPI could be utilized with same importance as Is FOR predicting the UCS, while predicting the BTS by Is appears to be more reliable than BPI.

Purpose: Managers are one of the important elements of an organization, FOR this reason, in order to draw the future of the organization, it is necessary FOR the planners to specify the conditions of their selection and appointment. ThereFORe, the current research has been done with the aim of identifying and analyzing the components of selecting future principals.Method: In this research, comparative and benchmarking method is used as a prospective approach. This approach is based on the belief that today's advanced organizations/countries can be considered as a model FOR the future of another organization/countries in their respective subjects. FOR this, first, the fields of comparison and benchmarking were determined using Brody's four-step comparison method; then the countries of Canada, Finland, Australia, South Africa, and Japan were selected according to the qualitative balance value in the international advanced TEAMS test, human development index, life quality index(health, instruction, and welfare), education quality index, and other scientific-scholarly indexes; finally, by extracting the criteria FOR the selection and appointment of principals through content analysis and comparison with Iran, the proposed framework FOR Iran has been presented.Findings: A total of 61 components FOR the selection of secondary school principals were identified from among the studies conducted in the selected countries in this article. By extracting the commonalities and differences of each of the components among the countries, it was found that the highest index of manager selection and appointment belongs to Japan and the lowest one is related to Finland.Conclusion: There are similarities between the components of selection of principals of secondary schools in Iran and selected countries. In Iran, special attention should be paid to important components such as adherence to religious principles, appropriate personality traits, creativity and innovation, motivation to develop capabilities, professional growth, power of supervision and accountability, social image, leader skills, and purposefulness and FOResight.

Intracytoplasmic sperm injection (ICSI) is one of the most successful techniques of Assisted Reproductive Technology (ART) and is mostly in use FOR the treatment of infertility with male factors. In this method, beFORe injecting sperm into the intracytoplasmic of the oocyte, cumulus cells around the oocyte must be stripped to facilitate the injection process. To achieve this, both enzymatic and mechanical methods are used in embryological laboratories FOR denudation, which has major deficiencies, including the possibility of damaging the oocyte prior to the injection process. In this research, a microfluidic-based device is introduced FOR the separation of cumulus cells around the oocyte with minimum manual operations. The results prove high efficiency, and non-destructive denudation of the oocyte with the reduced amount of culture medium leads to the low-cost preparation process of oocytes. The process can also be integrated with ICSI chips under development and will be reported shortly.

Purpose: The present study aims to identify and explain the futures of Iranian provinces in the competition FOR the development of NBIC technological convergence (synergy between nanotechnology, biotechnology, inFORmation technology and cognitive sciences) with a focus on Yazd province. Method: This research, which has been conducted with a qualitative and descriptive approach, is classified as an exploratory futures-study. In this way, the relevant research records were first reviewed to compile a list of drivers in the development of convergent technologies. The list was then refined and prioritized to identify two key drivers, with the Delphi process attended by fourteen experts. By intersecting the uncertainties of these two drivers, four scenarios of the province's future in technological convergence competition emerged. Findings: The two key drivers affecting the success of the province in the competition FOR convergent technologies are: the rate of development of the innovation ecosystem and the amount of financial resources allocated to this process. Based on this, four scenarios of the future situation of the province in this field were identified, which have been named as "Vanguard", "Buyer", "Remnant" and "Hired". Conclusion: In order FOR the provinces to be able to succeed in the FORthcoming competitions in the production and operation of convergent technologies, it is necessary to plan FOR strengthening the ecosystem infrastructure from now; at the same time, it is necessary to make efficient efFORts to provide sufficient financial resources FOR the research and commercialization of these technologies.

This paper presents a Transimpedance Amplifier (TIA) FOR high sensitivity Near Infrared Spectroscopy (NIRS). The proposed TIA is based on the Regulated Cascode (RGC) structure with an extra transistor employed to implement ADDITIONAL feed-FORward path and achieve higher gain values. The extra transistor senses a partially amplified input signal, available in the conventional circuit, and conveys an ADDITIONAL ac current into the load, which provides a higher gain. In addition, a bandwidth extension method is introduced using a capacitor and resistor, which can improve amplifier’s bandwidth by 40%. The proposed TIA is designed in 0.18µm CMOS technology and achieves a transimpedance gain of 101.9dB with a -3dB bandwidth of 91.2 MHz considering 2pF of photodiode capacitance at the TIA input. The input referred noise is 4.4pA/√Hz while dissipating 151µW power.

Probability density FUNCTIONs of the involved random variables are essential FOR the reliability-based design of offshore structures. The objective of present research was the derivation of probability density FUNCTION (PDF) FOR the local joint flexibility (LJF) factor, fLJF, in two-planar tubular DK-joints commonly found in jacket-type offshore structures. A total of 162 finite element (FE) analyses were carried out on 81 FE models of DK-joints subjected to two types of axial loading. Generated FE models were validated using available experimental data, FE results, and design FORmulas. Based on the results of parametric FE study, a sample database was prepared FOR the fLJF values and density histograms were generated FOR respective samples based on the Freedman-Diaconis rule. Nine theoretical PDFs were fitted to the developed histograms and the maximum likelihood (ML) method was applied to evaluate the parameters of fitted PDFs. In each case, the Kolmogorov-Smirnov and chi-squared tests were used to evaluate the goodness of fit. Finally, the Inverse Gaussian model was proposed as the governing probability distribution FUNCTION FOR the fLJF. After substituting the values of estimated parameters, two fully defined PDFs were presented FOR the fLJF in tubular DK-joints subjected to two types of axial loading.

One of the obvious reasons FOR most disorders in network service provisioning is network path congestion. Congestion avoidance in today's networks is too costly and sometimes impossible. With the introduction of SDN, centralizing the equipment's control plane has become possible. This paper presents an enhanced method named ESV-DBRA to avoid congestion in multi-tenant SDN networks. At first, ESV-DBRA monitors the traffic load and delay of all network paths FOR each tenant individually. Then, by merging the parameters obtained from the monitoring, the Service Level Agreements (SLA), and a novel proposed cost FUNCTION, it calculates the cost of the network paths per tenant. As a result, traffic FOR each tenant is routed through the path/paths at the lowest possible cost from the tenant's perspective. Next, the bandwidth quotas will be calculated and assigned to the tenants over their optimal routes. Afterward, whenever congestion is likely to occur in a path, ESV-DBRA automatically changes the route or bandwidth of the tenants' traffic related to this path to avoid congestion. Related algorithms are also proposed.Eventually, simulations show that the proposed method effectively increases bandwidth utilization by 10.76%.

Six male sterile with four male fertile sorghum, Sorghum bicolor(L.) Moench, lines were crossed in a factorial mating design in 1998. Twenty four F1 hybrids and ten parental lines were planted in a randomized complete block design in three replications, at Seed and Plant Improvement Institute, Karaj, Iran in 1999. Two cuttings FORage were harvested from all genotypes (F12 and parents). Four traits including plant height, tiller no., green yield and dry matter were measured. There were significant differences among genotypes, cuttings and genotype X cutting interaction FOR all traits at 1% level of probability. Analysis of variance showed that, there are significant effects of genotypes, parent, parent vs. crosses (except FOR tiller no. at average of cuttings), lines (FOR plant height in 2nd cut and mean), testers and line tester interaction. There were differnces among lines and testers GCA which shows the importance of additive effects of genes FOR this traits, thereFORe, the selection methods can be used FOR breeding programmes. Heretiability of some traits were different in first, second and average of cuttings. ThereFORe, in each cutting, the heretiability should be considered in multi cutting sorghum lines. Significant differences were observed among SCA of some parents which shows the importance of dominance effects of genes FOR majority of traits in hybrids. Hence the hybridization method can be used FOR breeding programmes. The highest positive SVA was obtained FOR green fodder from crossing of A__ICS 84 × R__2 , A__ICS88005× R__1, A__ICS31×R__28 & A__1×R__112, and FOR dry matter from crossing of A__ICS88005×R__1, A__ICS__31×R__28, A__2×R__112, A__ISC84×R__112& A__ICS31× R__2 at average of two cutting. The highest yield of two cuttings was obtained FOR green fodder from crossing of A__ICS84×R__2 and FOR dry matter from crossing of A__ICS31×R__2 with 144.8 and 34.5 tha^-1 , respecticely.